Patent US3514615A successfully refreshed from Google Patents.
US3514615A
Expired / Lapsed
US
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Thread discontinuity and defect detection apparatus
Assignee: Ivanhoe Research Corp
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Filing: 1967-02-28
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Granted: 1970-05-26
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Expires: 1987-02-28
Abstract
No abstract record available.
Inventors
- 👤 Douglas G Noiles
- 👤 Charles Szentkuti
- 👤 Alan F Swenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:50
CPC Classifications
D; D05; D05B; D05B51/00; B; B65; B65H; B65H63/00; B65H63/02; B65H63/024; B65H63/028; B65H63/032; B65H63/0321; B65H63/06; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1882962A
Cited
US2529161A
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US2989690A
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US3238375A
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US3264559A
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US3408500A
Cited
US3345812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |